: Howard Goldstein wrote:
: > Seeking a replacement for a 3-terminal "light delay" component for my
: > ancient Overhead Door model 100 garage door opener (or something I can
: > work with to replace the original component) .
: > This component is ceramic element wrapped with fragile nichrome that's
: > supposed to heat up a nearby bimetal contact that closes and lights the
: > lamps for a while after the moter reaches its limit.
: > The factory stopped making this model and the component back in 82 so
: > if anyone has an old one they'd sell the part from, or can suggest an
: > alternative to a new garage door operator, please let me know.
: > Thanks!
: Well, if you are really gung ho about sparing no expense to fix that old
: timer, and want to stick with the olde technology, they still do make
: thermal time delay relays.
I probably went too far with this old POS to begin with, just about
everything in it has been replaced from the starter cap to the motor
to the open/close. All except for the stupid timer that's at issue now.
: Oh yeah, looks like you'll also need an octal "tube socket" to plug it
: into. I could sport you one of those, I've got plenty left over from the
Thanks for the offer! Not sure I could mount it in the case though.
Your reply gave me some good search terms I'll poke around with
in case a guardian angel doesn't have one of these or a mindless
replacement for same laying around
: Otherwise, get one of the youngsters to learn 'ya about solid state time
: delay relays.
Any particular technology I should look for in these? The primary
has to pass a good 10 amps worth of 110v inductive motor load, and the
lamps ought to stay on for 2 or 3 minutes, maybe 240 watts
on the lights (includes a 2x safety factor)(why do i care about safety
I dont know, my sanity is gone from playing with this darned thing
de n2wx Howard